private void Transition(Color newColor, bool forward=true)
        {

            for (uint c = 0; c < Constants.MaxColumns; c++)
            {
                for (uint r = 0; r < Constants.MaxRows; r++)
                {
                    var row = (forward) ? r : Constants.MaxRows - r - 1;
                    var col = (forward) ? c : Constants.MaxColumns - c - 1;
                    Keyboard.Instance[row, col] = newColor;
                }
                Thread.Sleep(50);
            }
        }


        private void button1_Click(object sender, EventArgs e)
        {

            Transition(Color.Red);
            Transition(Color.Green);
            Transition(Color.Red, false);
            Transition(Color.Green, false);
        }